Trigonometric sine, element-wise.
Parameters : | x : array_like
|
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Returns : | y : array_like
|
Notes
The sine is one of the fundamental functions of trigonometry
(the mathematical study of triangles). Consider a circle of radius
1 centered on the origin. A ray comes in from the axis,
makes an angle at the origin (measured counter-clockwise from that
axis), and departs from the origin. The
coordinate of
the outgoing ray’s intersection with the unit circle is the sine
of that angle. It ranges from -1 for
to
+1 for
The function has zeroes where the angle is
a multiple of
. Sines of angles between
and
are negative. The numerous properties of the sine and
related functions are included in any standard trigonometry text.
Examples